Estimation of Water Potential of Potato Tubers

Flashcards created from lecture notes on the estimation of water potential of potato tubers focusing on key terms and definitions.

Water Potential

The tendency of water to move from one area to another.

Osmosis

The diffusion of water through a selectively permeable membrane from a more dilute solution to a more concentrated solution.

Hypotonic Solution

A solution that has a lower solute concentration than another solution, causing water to move into the cell.

Hypertonic Solution

A solution that has a higher solute concentration than another solution, causing water to move out of the cell.

Isotonic Solution

A solution that has the same solute concentration as another solution, resulting in no net movement of water.

Sucrose Concentration

The measure of the amount of sucrose dissolved in a solution, affecting the water potential.

Plasmolyzed

The condition of a cell when it loses water and the plasma membrane pulls away from the cell wall.

Turgid

The state of a plant cell when it is swollen due to water uptake by osmosis.

Mass Change (Δm)

The difference in weight before and after immersion in a sucrose solution, used to estimate water potential.

Pressure Potential

The physical pressure on a solution, contributing to the overall water potential, which is zero under atmospheric pressure.